07/22/2013 09:50 EDT

Duchess Of Cambridge Gives Birth To Royal Baby Boy, Celebrities Tweet Reaction

The Duchess of Cambridge's royal baby is finally on its way, and some celebrities couldn't help but chime in on the big news.

Kate Middleton went into labour early Monday morning. Prince William escorted his pregnant wife to St. Mary’s Hospital in London and the birth is ‘progressing as normal,’ a Kensington Palace spokesperson said.

UPDATE: After the royal baby's birth was announced Monday afternoon, even more celebrities tweeted their congratulations and commentary. Check out the slideshow below to see the reaction to Monday's royal news.

Some celebrities offered words of encouragement for Duchess Kate, while others made a few royal baby predictions about the still-unknown name and gender.

Check out celebrity reaction to Kate's labour below:

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